"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 极致RTO-硬件故障类
Case Name   : 开启极致RTO，业务压力后备机进行build过程中，备机磁盘满故障后恢复，重新build后，关闭极致RTO，主备数据一致
Create At   : 2020/10/15
Owner       : @peilinqian
Description :
    1、开启极致RTO
    2、备机进行重建
    3、注入磁盘满故障
    4、查询主备状态
    5、等待10S，恢复备机故障
    6、备机进行重建
    7、查询主备状态
    8、执行完成后，关闭极致RTO
    9、查询主备数据是否一致
Expect      :
    1、开启极致RTO成功
    2、备机开始进行重建
    3、注入磁盘满故障成功，备机重建失败
    4、查询主备状态备机stop
    5、等待10S，恢复备机故障成功
    6、备机进行重建成功
    7、查询主备状态正常
    8、执行完成后，关闭极致RTO成功
    9、查询主备数据一致
History     :
    modified：2021-3-9 by 5328113;主备同步方法调用修改，增加超时等待时间；
    modified：2021-2-5 by 5328113;guc参数还原时指定还原值
    modified:2020-12-15;注入备机磁盘满故障，备机状态可能是normal，去掉断言；
    modified:2021-1-28 by 5328113;删除start成功断言，删除不必要tpcc
"""

import time
import unittest

from testcase.utils.ComThread import ComThread
from testcase.utils.Common import Common
from testcase.utils.CommonSH import *
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro


class ExtremeRto(unittest.TestCase):
    nodes_tuple = ('PrimaryDbUser', 'Standby1DbUser', 'Standby2DbUser')

    @RestartDbCluster(*nodes_tuple)
    def setUp(self):
        self.log = Logger()
        self.log.info(
            '----Opengauss_Reliability_RTO_Hardware_Disk_Case005:初始化----')

        self.pri_root = Node(node='PrimaryRoot')
        self.pri_dbuser = Node(node='PrimaryDbUser')
        self.sta1_root = Node(node='Standby1Root')
        self.sta1_dbuser = Node(node='Standby1DbUser')
        self.sta2_dbuser = Node(node='Standby2DbUser')
        self.pri_sh = CommonSH('PrimaryDbUser')
        self.sta_1_sh = CommonSH('Standby1DbUser')
        self.sta_2_sh = CommonSH('Standby2DbUser')
        self.com = Common()
        self.constant = Constant()
        self.tpcc_path = macro.TPCC_PATH
        self.node_num = self.com.get_node_num(self.pri_root)
        self.log.info(self.node_num)
        self.max_time = 1200
        self.min_time = 300

    def test_main(self):
        try:
            self.log.info('----1、开启极致RTO----')
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'replication_type=1')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_parse_workers=4')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_redo_workers=4')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'hot_standby=off')
            self.assertTrue(msg)
            # 重启数据库配置文件生效
            self.pri_sh.stopDbCluster()
            time.sleep(2)
            self.pri_sh.startDbCluster()

            self.log.info('----查看主机query，同步是否正常----')
            self.pri_sh.check_location_consistency('primary',
                                                   self.node_num,
                                                   self.min_time)
            self.log.info('----查询主备状态----')
            status = self.pri_sh.getDbClusterStatus('status')
            self.assertTrue(status)

            self.log.info('----2、备机进行重建----')
            success_msg = self.constant.REBUILD_SUCCESS_MSG
            build_thread = ComThread(self.sta_1_sh.executeGsctl,
                                     args=('build',
                                           success_msg,))
            build_thread.setDaemon(True)
            build_thread.start()
            time.sleep(10)

            self.log.info('----3、注入磁盘满故障----')
            self.log.info("-----------获取备机磁盘信息 -----------")
            df_cmd = f"df -h {macro.DB_INSTANCE_PATH}"
            self.log.info(df_cmd)
            df_result = self.sta1_root.sh(df_cmd).result()
            self.log.info(df_result)
            self.DISK_NAME = df_result.splitlines()[-1].split()[0].strip()
            self.log.info("-----------注入磁盘满故障 -----------")
            inject_cmd = f'rfile_full (diskname) values ({self.DISK_NAME})'
            inject_result = self.com.cfe_inject(self.sta1_root, inject_cmd)
            self.log.info(inject_result)
            success_msg = self.constant.CFE_DISK_FULL_SUCCESS_MSG
            self.assertIn(success_msg, inject_result)

            self.log.info("-----------获取备机磁盘占用情况 -----------")
            df_cmd = f"df -h {macro.DB_INSTANCE_PATH}"
            self.log.info(df_cmd)
            df_result = self.sta1_root.sh(df_cmd).result()
            self.log.info(df_result)
            self.USED_PERCENT = df_result.splitlines()[-1].split()[4].strip()
            self.assertTrue(self.USED_PERCENT == '100%')

            # 等待build重建完成
            build_thread.join()
            build_result = build_thread.get_result()
            self.assertFalse(build_result)

            self.log.info('----4、查询主备状态----')
            self.pri_sh.getDbClusterStatus('status')

            self.log.info('----5、等待10S，恢复备机故障----')
            time.sleep(10)
            self.log.info("-----------清除磁盘满故障 -----------")
            clean_cmd = f'rfile_full where(diskname={self.DISK_NAME})'
            clean_result = self.com.cfe_clean(self.sta1_root, clean_cmd)
            self.log.info(clean_result)
            self.assertIn(self.constant.CFE_DISK_CLEAN_SUCCESS_MSG,
                          clean_result)
            self.log.info("-----------获取备机磁盘占用情况 -----------")
            df_cmd = f"df -h {macro.DB_INSTANCE_PATH}"
            self.log.info(df_cmd)
            df_result = self.sta1_root.sh(df_cmd).result()
            self.log.info(df_result)
            self.USED_PERCENT = df_result.splitlines()[-1].split()[4].strip()
            self.assertTrue(self.USED_PERCENT != '100%')

            self.log.info('----6、备机进行重建----')
            rebuild_result = self.sta_1_sh.build_fail_scp_crtfile()
            if rebuild_result:
                self.log.info('重建失败后，再次进行备机重建成功，已恢复')
            else:
                self.log.info('重建失败后，再次进行备机重建失败，请检查失败原因')
            self.assertTrue(rebuild_result)

            self.log.info('----查看主机query，同步是否正常----')
            self.pri_sh.check_location_consistency('primary',
                                                   self.node_num,
                                                   self.min_time)
            self.log.info('----7、查询主备状态----')
            status = self.pri_sh.getDbClusterStatus('status')
            self.assertTrue(status)

        finally:
            self.log.info('----8、执行完成后，关闭极致RTO----')
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_parse_workers = 1')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'recovery_redo_workers = 1')
            self.assertTrue(msg)
            msg = self.pri_sh.executeGsguc('set',
                                           self.constant.GSGUC_SUCCESS_MSG,
                                           'hot_standby=on')
            self.assertTrue(msg)
            # 重启数据库配置文件生效
            self.pri_sh.stopDbCluster()
            time.sleep(2)
            self.pri_sh.startDbCluster()

            # 校验备机是否完成数据同步
            self.log.info('校验备机是否完成数据同步')
            flag_1 = self.sta_1_sh.check_location_consistency('standby',
                                                              self.node_num,
                                                              self.min_time)
            self.assertTrue(flag_1)
            flag_2 = self.sta_2_sh.check_location_consistency('standby',
                                                              self.node_num,
                                                              self.min_time)
            self.assertTrue(flag_2)

            self.log.info('----9、查询主备数据是否一致----')
            nodes_tuple = (self.pri_dbuser,
                           self.sta1_dbuser,
                           self.sta2_dbuser)
            flag = self.com.check_data_sample_by_all(r'\d', *nodes_tuple)
            self.assertTrue(flag)

            table_dict = self.com.format_sql_result(
                self.pri_sh.executDbSql(r'\d'))
            table_name = table_dict.get('Name')
            for name in table_name:
                select_sql = f'select count(*) from {name};'
                flag = self.com.check_data_sample_by_all(select_sql,
                                                         *nodes_tuple)
                self.assertTrue(flag)

    def tearDown(self):
        # 是否需要恢复故障
        df_cmd = f"df -h {macro.DB_INSTANCE_PATH}"
        self.log.info(df_cmd)
        df_result = self.sta1_root.sh(df_cmd).result()
        self.log.info(df_result)
        self.USED_PERCENT = df_result.splitlines()[-1].split()[4].strip()
        if self.USED_PERCENT == '100%':
            self.log.info('----异常中断，磁盘故障未恢复处理----')
            clean_cmd = f'rfile_full where(diskname = {self.DISK_NAME})'
            clean_result = self.com.cfe_clean(self.sta1_root, clean_cmd)
            self.log.info(clean_result)

        self.log.info('----校验刷脏页是否完成----')
        self.pri_sh.check_whether_remain_dirty_page()

        self.log.info(
            '----Opengauss_Reliability_RTO_Hardware_Disk_Case005:执行完毕----')
